Let i p - q - p - q- ii p - q - p - q- iii p - q - p - q- iv p - q - p - q which one is tautology

The correct option is A (i) (i) (p ∨ q) ∨ (p ∨sin q) = p ∨ (q ∨sin q) = p ∨ t =t (ii) (p #160;∧ q) #160;∧ #160; (p ∨∼ q) (iii) (p ∨ q ...

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Theorems for Continuity

Let i p ∨ q...

Question

Let (i) $(p \lor q) \lor (p \lor \sim q)$ ,
(ii) $(p \land q) \land (p \lor \sim q)$ ,
(iii) $(p \lor q) \land (p \lor \sim q)$ ,
(iv) $(p \lor q) \lor (p \land \sim q)$
which one is tautology

(i)

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(i i)

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(i i i)

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(i v)

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